/*
 * Copyright 2013-2018 Lilinfeng.
 *  
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *  
 *      http://www.apache.org/licenses/LICENSE-2.0
 *  
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.phei.netty.wss;

import io.netty.bootstrap.ServerBootstrap;
import io.netty.channel.Channel;
import io.netty.channel.ChannelInitializer;
import io.netty.channel.ChannelPipeline;
import io.netty.channel.EventLoopGroup;
import io.netty.channel.nio.NioEventLoopGroup;
import io.netty.channel.socket.SocketChannel;
import io.netty.channel.socket.nio.NioServerSocketChannel;
import io.netty.handler.codec.http.HttpObjectAggregator;
import io.netty.handler.codec.http.HttpServerCodec;
import io.netty.handler.stream.ChunkedWriteHandler;


public class WebSocketServer 
{
    private final int port;
    private final String sProtocol;
    private final String sslMode;

    public WebSocketServer(int port, String sslMode, String sPro) {
    	this.port = port;
    	this.sslMode = sslMode;
    	this.sProtocol = sPro;
    }
	
    public void run() throws Exception 
    {
		EventLoopGroup bossGroup = new NioEventLoopGroup();
		EventLoopGroup workerGroup = new NioEventLoopGroup();
		try 
		{
		    ServerBootstrap b = new ServerBootstrap();
		    
		    //ServerBootstrap b = new ServerBootstrap();
		    //b.group(bossGroup, workerGroup)
			//    .channel(NioServerSocketChannel.class)
			//    .childHandler(new SecureChatServerInitializer(sslMode));
	
		    //b.bind(port).sync().channel().closeFuture().sync();
		    
		    b.group(bossGroup, workerGroup)
			    .channel(NioServerSocketChannel.class)
			    .childHandler(new SecureServerInitializer(this.sslMode, this.sProtocol));
		    /*
			    .childHandler(new ChannelInitializer<SocketChannel>() {
	
					@Override
					protected void initChannel(SocketChannel ch)  throws Exception 
					{
					    ChannelPipeline pipeline = ch.pipeline();
					    pipeline.addLast("http-codec",    new HttpServerCodec());
					    pipeline.addLast("aggregator",	    new HttpObjectAggregator(65536));
					    ch.pipeline().addLast("http-chunked",    new ChunkedWriteHandler());
					    pipeline.addLast("handler",	    new WebSocketServerHandler());
					}
			    });
		     */
		    Channel ch = b.bind(port).sync().channel();
		    System.out.println("Web socket server started at port " + port  + ". SSLMode=" + this.sslMode);
		    //System.out.println("Open your browser and navigate to http://localhost:"  + port + '/');
	
		    ch.closeFuture().sync();
		} finally {
		    bossGroup.shutdownGracefully();
		    workerGroup.shutdownGracefully();
		}
    }

    public static void main(String[] args) throws Exception 
    {
		int port = 8989;
		if (args.length > 0) {
		    try {
		    	port = Integer.parseInt(args[0]);
		    } catch (NumberFormatException e) {
		    	e.printStackTrace();
		    }
		}
		//new WebSocketServer().run(port);
		
		String sslMode = "CA";
		if (args.length > 1) {
		    try {
		    	sslMode = args[1];
		    } catch (NumberFormatException e) {
		    	e.printStackTrace();
		    }
		}

		String sPro = "WSS";
		if (args.length > 2) {
		    try {
		    	sPro = args[2];
		    } catch (NumberFormatException e) {
		    	e.printStackTrace();
		    }
		}
		
		new WebSocketServer(port, sslMode, sPro).run();
		
    }
}
